[Bug target/77308] surprisingly large stack usage for sha512 on arm

[edlinger at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77308

--- Comment #11 from Bernd Edlinger <edlinger at gcc dot gnu.org> ---
Author: edlinger
Date: Mon Oct 17 17:46:59 2016
New Revision: 241273

URL: https://gcc.gnu.org/viewcvs?rev=241273&root=gcc&view=rev
Log:
2016-10-17  Bernd Edlinger  <bernd.edlin...@hotmail.de>

        PR target/77308
        * config/arm/arm.c (arm_emit_coreregs_64bit_shift): Clear the result
        register explicitly.
        * config/arm/arm.md (ashldi3, ashrdi3, lshrdi3): Don't FAIL if
        optimizing for size.

testsuite:
2016-10-17  Bernd Edlinger  <bernd.edlin...@hotmail.de>

        PR target/77308
        * gcc.target/arm/pr77308.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/arm/pr77308.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/arm/arm.c
    trunk/gcc/config/arm/arm.md
    trunk/gcc/testsuite/ChangeLog